* Timing... snow begins this evening and then transitions to sleet and freezing rain from south to north during the overnight hours before changing to rain tomorrow morning.

* Impacts... untreated roads will be snow covered and slippery this evening and may impact the tail end of the evening commute. Sleet and freezing rain expected overnight into tomorrow morning may make for slippery conditions and significant weight on area rooftops as a transition to rain occurs.

* Visibilities... one quarter to one half mile at times.

Precautionary/preparedness actions...

A Winter Weather Advisory is issued when snow and/or ice isforecast to develop in the affected areas... but accumulations areexpected to be light. Any snow or ice would result in slipperyconditions on untreated roadways and sidewalks. When temperaturesare below freezing... motorists need to be especially careful onbridges and overpasses where slippery spots can easily develop.